GB1198632A - Sensitising Dyes - Google Patents

Sensitising Dyes

Info

Publication number
GB1198632A
GB1198632A GB56607/66A GB5660766A GB1198632A GB 1198632 A GB1198632 A GB 1198632A GB 56607/66 A GB56607/66 A GB 56607/66A GB 5660766 A GB5660766 A GB 5660766A GB 1198632 A GB1198632 A GB 1198632A
Authority
GB
United Kingdom
Prior art keywords
alkyl
dyes
benzimidazole
aralkyl
nov
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB56607/66A
Inventor
Geoffrey Ernest Ficken
Konrad Jerzy Bannert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ilford Imaging UK Ltd
Original Assignee
Ilford Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ilford Ltd filed Critical Ilford Ltd
Priority to GB56607/66A priority Critical patent/GB1198632A/en
Priority to US683830A priority patent/US3615642A/en
Priority to BE707214D priority patent/BE707214A/xx
Priority to DE19671597612 priority patent/DE1597612A1/en
Priority to FR129926A priority patent/FR1546879A/en
Publication of GB1198632A publication Critical patent/GB1198632A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B23/00Methine or polymethine dyes, e.g. cyanine dyes
    • C09B23/02Methine or polymethine dyes, e.g. cyanine dyes the polymethine chain containing an odd number of >CH- or >C[alkyl]- groups
    • C09B23/06Methine or polymethine dyes, e.g. cyanine dyes the polymethine chain containing an odd number of >CH- or >C[alkyl]- groups three >CH- groups, e.g. carbocyanines
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D235/00Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, condensed with other rings
    • C07D235/02Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, condensed with other rings condensed with carbocyclic rings or ring systems
    • C07D235/04Benzimidazoles; Hydrogenated benzimidazoles
    • C07D235/06Benzimidazoles; Hydrogenated benzimidazoles with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached in position 2
    • C07D235/08Radicals containing only hydrogen and carbon atoms
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D235/00Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, condensed with other rings
    • C07D235/02Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, condensed with other rings condensed with carbocyclic rings or ring systems
    • C07D235/04Benzimidazoles; Hydrogenated benzimidazoles
    • C07D235/20Two benzimidazolyl-2 radicals linked together directly or via a hydrocarbon or substituted hydrocarbon radical

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)

Abstract

1,198,632. Cyanine dyes. ILFORD Ltd. 24 Nov., 1967 [28 Nov., 1966; 19 Dec., 1966], Nos. 53172/66 and 56607/66. Heading C4P. [Also in Division G2] The invention comprises trimethene cyanine dyes of the formula wherein either R 1 or R 2 is alkyl, and R 3 and the other of R 1 and R 2 is alkyl, aryl, sulphoalkyl, hydroxyalkyl, alkoxyalkyl, carboxyalkyl, aralkyl, carboxybenzyl, or -(CH 2 ) n SO 2 NHCOR 20 or -(CH 2 ) n SO 2 NHR 21 (where n is 1-6, R 20 is alkyl and R 21 is alkyl or aralkyl); Q is phenyl which may be substituted with halogen, alkyl or alkoxy; and D completes a benzimidazole, benzoxazole, benzothiazole, benzoselenazole or 3H-indole ring, the benzo-rings of all of which may be substituted; and X is an anion. The dyes may be prepared by the usual condensation reactions. The symmetrical dyes may be prepared by reacting the 2-methyl-benzimidazole with chloral alcoholate in a basic medium.
GB56607/66A 1966-11-28 1966-11-28 Sensitising Dyes Expired GB1198632A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB56607/66A GB1198632A (en) 1966-11-28 1966-11-28 Sensitising Dyes
US683830A US3615642A (en) 1966-11-28 1967-11-17 Dye-sensitized photographic silver halide emulsions
BE707214D BE707214A (en) 1966-11-28 1967-11-28
DE19671597612 DE1597612A1 (en) 1966-11-28 1967-11-28 Sensitization of silver halide photographic emulsions
FR129926A FR1546879A (en) 1966-12-19 1967-11-28 Coloring matters belonging to the cyanine series and their use, in particular as sensitizing dyes in photographic emulsions

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB56607/66A GB1198632A (en) 1966-11-28 1966-11-28 Sensitising Dyes
GB5317266 1966-11-28

Publications (1)

Publication Number Publication Date
GB1198632A true GB1198632A (en) 1970-07-15

Family

ID=26267205

Family Applications (1)

Application Number Title Priority Date Filing Date
GB56607/66A Expired GB1198632A (en) 1966-11-28 1966-11-28 Sensitising Dyes

Country Status (4)

Country Link
US (1) US3615642A (en)
BE (1) BE707214A (en)
DE (1) DE1597612A1 (en)
GB (1) GB1198632A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0669323A1 (en) * 1994-02-24 1995-08-30 Haarmann & Reimer Gmbh Utilization of benzazols as UV-absorbers, new benzazoles and process for their preparation

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT988269B (en) * 1973-06-18 1975-04-10 Minnesota Mining & Mfg CYANINE DYES AND THEIR USE AS SPECTRAL SENSITIZERS IN DIRECT POSITIVE PHOTOGRAPHIC MATERIALS OF THE SPECTRALLY SENSITIZED HERSCHEL EFFECT TYPE
US5238779A (en) * 1991-07-25 1993-08-24 Eastman Kodak Company Nucleated high contrast photographic elements containing low-stain sensitizing dyes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0669323A1 (en) * 1994-02-24 1995-08-30 Haarmann & Reimer Gmbh Utilization of benzazols as UV-absorbers, new benzazoles and process for their preparation
US5585091A (en) * 1994-02-24 1996-12-17 Haarmann & Reimer Gmbh Use of benzazoles UV absorbers, new benzazoles and a process for their preparation

Also Published As

Publication number Publication date
BE707214A (en) 1968-04-01
DE1597612A1 (en) 1970-06-25
US3615642A (en) 1971-10-26

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee